课文理解
________ are of great importance for building our bodies；they help us to build new cells as old ones die.

A．Fats

B．Minerals

C．Proteins

D．Carbohydrates

________ is not main source of protein.

A．Meat

B．Fish

C．Cheese

D．Ice cream

Fat can be considered as ________ for our body.

A．fuel

B．memory

C．a bank

D．a mill

What does nutritional value depend on?

A．The amount of food we have.

B．The extra vitamins we get.

C．The time we eat food.

D．The types of food we eat.

Which of the following statements is TRUE according to the passage?

A．Vitamins are found in icecream，sausage and butter.

B．We can get essential proteins by eating enough dairy foods，eggs and meat.

C．The more vitamins we take，the more energetic we’ll be.

D．Variety is a guarantee of good nutrition.